[wasm] Fix missing initialization

The array allocated in {SetInterpreterRedirection} was accidentally
left uninitialized, which could result in later calls to
{has_interpreter_redirection} to return true. In that case, we would
not patch the jump table when publishing the code, and would then crash
during execution.

This was uncovered by an unrelated change. It's covered by existing
tests though, we were just lucky so far that the relevant bits were 0
for some reason.

R=mstarzinger@chromium.org

Change-Id: I712200cb0c9f2a9c828f6a9a502e6307dc438bd3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1532060Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60359}

src/wasm/wasm-code-manager.h

@@ -428,7 +428,7 @@ class V8_EXPORT_PRIVATE NativeModule final {
     if (!interpreter_redirections_) {
       interpreter_redirections_.reset(
           new uint8_t[RoundUp<kBitsPerByte>(module_->num_declared_functions) /
-                      kBitsPerByte]);
+                      kBitsPerByte]{});
     }
     uint32_t bitset_idx = func_index - module_->num_imported_functions;
     uint8_t& byte = interpreter_redirections_[bitset_idx / kBitsPerByte];